With my Bose QC2 phones, I've never noticed any diminution in the
quality of the desired signal. Full disclosure: I'm a CW guy. I have no
idea how they perform on SSB.
73,
Steve
AA4AK
On 12/26/2013 8:30 AM, Charlie T, K3ICH wrote:
I've never tried noise cancelling headphones, so my one question is,
does anyone detect ANY effect to the desired audio? In other words,
any "Noise-Blanker" effects or coloration of the audio?
I would suppose that, since they're designed for music, the noise
cancelling function is transparent, right?
On the very few flights I've taken recently, I successfully used my
old Sony MDR-7506's. Maybe I don't know what I'm missing by NOT using
a noise cancelling set.
73, Charlie k3ICH
----- Original Message ----- From: "Ron D'Eau Claire" <r...@cobi.biz>
To: <elecraft@mailman.qth.net>
Sent: Thursday, December 26, 2013 2:25 AM
Subject: Re: [Elecraft] Noise Cancelling Headphones
True noise cancelling headphones will cut noise far, far beyond anything
acoustic isolation from ear pads can accomplish.
I have a pair of Audio-Technia QuierPoint ATH-ANC1. They are "on ear"
types
so I didn't recommend them to the person asking for ones that cover the
ears. They are very comfortable for me.
When I fly, as the roar and whine of the big jet engines invades the
cabin,
I just switch them on and all the racket becomes a quite background
purr.
I often wear them for the entire 11 hours from the west coast of the
USA to
Europe, even if I'm not listening to any programs.
The active circuitry in true noise-cancelling phones inverts the sound
arriving and so actually cancels it out.
The circuit takes a few seconds to adapt so when the attendant brings my
drink she has no trouble waking me.
73 Ron AC7AC
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